【PDF】66 ·焊接质量控制与管理· - 资源下载

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紫甘兰

2019-06-02

69 焊接技术第36 卷第

4 期2007 年8月Abstract: Welding parameter of girth joint process of X70 pipeline steel was designed by using primary orthogonal regression design method by which X70 pipeline tube was welded. Impact test was done by using obtained girth joint. Then regression mathematics equation was obtained between impact ductility and welding parameter. Impact ductility of girth joint of X70 pipeline steel was mainly af........

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PDF《66 ·焊接质量控制与管理·》